What are the familiar blood groups?

A) A,B,O,and X
B) X,Y,A,and B
C) B,O,X,and XX
D) A,B,O,and AB

Blood Groups

are categories of blood based on the presence or absence of certain antigens on the surface of red blood cells, important for blood transfusions.

A,B,O,AB

The four main blood groups in the ABO blood group system, each classified by the presence or absence of certain antigens on the surface of red blood cells.